Add nginx configuration for WordPress subdirectory setup

server/wordpress-in-directory.md

@@ -2,6 +2,8 @@
 
 Many people want WordPress to power their website's root (e.g. https://example.com) but they don't want all of the WordPress files cluttering up their root directory. WordPress allows you to install it into a subdirectory, but have your website served from the website root.
 
+**Note:** This guide covers configuration for Apache (`.htaccess`), nginx (server blocks), and IIS (`web.config`).
+
 As of [Version 3.5](https://wordpress.org/documentation/wordpress-version/version-3-5/), Multisite users may use all of the functionality listed below. If you are running a version of WordPress older than 3.5, please update before installing a Multisite WordPress install on a subdirectory.
 
 **Note to theme/plugin developers:** this will not separate your code from WordPress. Themes and plugins will still reside under `wp-content` folder.
@@ -16,6 +18,8 @@ Let's say you've installed WordPress at `example.com`. Now you have two differen
 ## Method I (Without URL change)
 
 1. After Installing WordPress in the root folder, move EVERYTHING from the root folder into subdirectory.
+
+### Apache (.htaccess)
 2. Create a `.htaccess` file in the root folder, and put this content inside (just change `example.com` and `my_subdir`):
 
 ```
@@ -31,6 +35,22 @@ RewriteRule ^(/)?$ my_subdir/index.php [L]
 </IfModule>
 ```
 
+### nginx (server block)
+2. Add this to your nginx server block:
+
+```nginx
+location /my_subdir/ {
+    try_files $uri $uri/ /my_subdir/index.php?$args;
+}
+
+location ~ \.php$ {
+    fastcgi_split_path_info ^(.+\.php)(/.*)$;
+    fastcgi_pass unix:/var/run/php/php8.1-fpm.sock;
+    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+    include fastcgi_params;
+}
+```
+
 That's all 🙂
 
 ## Method II (With URL change)
@@ -55,12 +75,31 @@ _(p.s. If you've already installed WP in subdirectory, some steps might be alrea
 
 In some cases, some people like to install separate versions in a subdirectory (such as `/2010`, `/2011`, `/latest` and etc..), and want that website (by default) used the latest version, then Install WordPress in a subdirectory, such as `/my_subdir` and in your root folder's .htaccess file add the following (just change the words as you need):
 
+**Apache (.htaccess):**
 ```
 RewriteEngine On
 RewriteCond %{HTTP_HOST} ^(www.)?example.com$
 RewriteRule ^(/)?$ my_subdir\[L\]
 ```
 
+**nginx (server block):**
+```nginx
+location = / {
+    return 301 /my_subdir/;
+}
+
+location /my_subdir/ {
+    try_files $uri $uri/ /my_subdir/index.php?$args;
+}
+
+location ~ \.php$ {
+    fastcgi_split_path_info ^(.+\.php)(/.*)$;
+    fastcgi_pass unix:/var/run/php/php8.1-fpm.sock;
+    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+    include fastcgi_params;
+}
+```
+
 Now when users to go your root domain (`example.com`), it will automatically redirect to the subdirectory you specified.
 
 Note: This code comes from Site 5's post here: [How to Redirect Your Domain to a Subfolder Using .htaccess](https://qa.site5.com/advanced/how-to-redirect-your-domain-to-a-subfolder-using-htaccess/).